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Showing posts from March, 2017

New Bike Fix

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I ordered up a cheapish frame off ebay recently--an early 90s Raleigh Technium Peak mountain bike frame. I'm hoping to combine the lively ride of my Raleigh Technium road bike with good brakes and the ability to run fat tires. Besides, who else is buying old Techniums?

Alas, when I went to put the frame together, I ran into an issue: the bottom bracket threads weren't aligned between the left and right sides of the frame. You can see the bottom bracket is way off center here:

But I found a good and cheap solution: a $17 YST threadless bottom bracket from ebay. Instead of screwing into the frame, the drive side cartridge screws into the fixed cup.

One small catch is that you need two bottom bracket tools to install it. Good thing my bike shop is pretty well equipped and I have two:

And... it seems to work beautifully. It tightened right up, no special magic required. At least, it works find after I got the right length. 110mm was too short for the Suntour XC Pro crank I had pla…

Inappropriate Technology

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With six bikes in the garage (at the time), but no fixed gear, something clearly had to change. My KM could easily be a fixed gear (track ends), as could the Technium or Polyvalent (forward facing horizontals), or even the Jones or Niner (EBB), but I like to do things the hard way: I converted my vertical dropout Rockhopper instead:

It was just dumb luck that this worked out so well: I could use my favorite 40x16 gear with a half link chain, no dropout filing required. With my cheap Nashbar touring fork on the front, I could fit 700c wheels and a moderate sized 34mm tire. It makes for a surprisingly fun bike to scoot around on: